weather.js

/*
Copyright 2018 CallTrackingMetrics

Integrating phone calls with openweathermap.org.

*/

function KelvinToFahrenheit(kelvin) {
  return Math.round(((9/5) * kelvin) - 459.67);
}
exports.handler = function(event, context, callback) {
  let url = "https://api.openweathermap.org/data/2.5/weather";
  let zip = event.options.input;
  url += "?zip=" + zip + "&appid=" + process.env.appid;
  
  console.log(url);

  if (!zip) {
    let payload = [{action:"tag", data: "nozipcode"}];
    payload.push({action: 'say', data: "I did not get a zip code for your location."});
    payload.push({action: 'hangup'});
    console.log("payload:", payload);
    context.done(null, payload);
    return;
  }
  
  context.http_get(url).then(function(res){
    //console.log(res.responseBody);
    let data = JSON.parse(res.responseBody);
    let payload = [{action:"tag", data: "zipinput"}];
    // say:Joanna:en-US:What ever you want to say goes here
    let voice = "say:Joanna:en-US"
    let message = "";
    if (data.weather) {
      let weather = data.weather.map(function(data) { return data.description });
      let location = data.name;
      message = "The weather in " + location + " is " + KelvinToFahrenheit(data.main.temp) +
                " degrees with " + data.main.humidity + ' percent humidity, expect ' + weather.join(" and ");
    } else if (data.message) {
      message = data.message;
    } else {
      message = "i don't understand you";
    }
    payload.push({action: 'say', data: voice + ":" + message });
    payload.push({action: 'hangup'});
    console.log("payload:", payload);
    context.done(null, payload);
  }).catch(function(res) {
    console.log(res);
    context.done(null, [
      {action: 'say', data: "i don't understand you"},
      {action: 'hangup'}
    ]);
  });
  
}